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Finding the Fourth Proportional to 75,360.87, 104,008.82 and 45,147.47

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Solution

The fourth proportional to 75,360.87, 104,008.82 and 45,147.47 is: 62,309.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,360.87 : 104,008.82 = 45,147.47 : x
  2. Step 2: Convert to fraction form
    75,360.87/104,008.82 = 45,147.47/x
  3. Step 3: Cross multiply
    75,360.87x = 104,008.82 × 45,147.47
  4. Step 4: Simplify right side
    75,360.87x = 4,695,734,334.90
  5. Step 5: Solve for x
    x = 4,695,734,334.90/75,360.87
  6. Step 6: Final answer
    x = 62,309.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.